共 6 条
- [1] FLAHAUT J, 1959, B SOC CHIM FR, V26, P1917
- [2] HOUSTON MD, 1961, CERAM AGE, V77, P49
- [3] Iandelli A., 1961, RARE EARTH RES, P135
- [4] KLEBER EV, 1961, RARE EARTH RES, P135
- [5] PICON M, 1960, B SOC CHIM FR, V27, P221
- [6] SCHWARZENBACH G, 1957, COMPLEXOMETRIC TITRA, P73